Download/Install superlu_dist/mumps/MPI/cmake with metis / parmetis without mpi Output Install Activate PETSc Add dir to PATH Check Activation thru GridapPETSc If it tells the path where you installed your PETSc, it is done. Install OpenBLAS with multi-threading Install OpenBLAS which has multi-threading version Re-Compile PETSc with the OpenBLAS Check the link with OpenBLAS Compile PETSc … Continue reading Compile and Install PETSc with external libraries